TY - JOUR
T1 - Young's double-slit experiment using two-center core-level photoemission
T2 - Photoelectron scattering effects
AU - Liu, X. J.
AU - Prümper, G.
AU - Gel'mukhanov, F.
AU - Cherepkov, N. A.
AU - Tanaka, H.
AU - Ueda, K.
N1 - Funding Information:
The experiment was carried out with the approval of the SPring-8 program review committee and supported in part by grants in aid for scientific research provided by the Japan Society for Promotion of Science (JSPS). The authors thank to T. Lischke, M. Hoshino, T. Tanaka, Y. Tamenori and J. Harries for their help during the experiment, S.K. Semenov for his help in ab initio calculations and V. Kimberg for discussion based on multiple-scattering theory. XJL is grateful to the COE program at Tohoku University for financial support. NC and FG are grateful to Tohoku University for hospitality and financial support during their stay in Japan. NAC acknowledges support from the INTAS grant no. 03-51-4706. FG acknowledges support from the Swedish Research council (VR) and the STINT foundation.
PY - 2007/5
Y1 - 2007/5
N2 - Core-level photoemission from N2 can be considered as an analogue of Young's double-slit experiment (YDSE) in which the double-slit is replaced by a pair of N 1s orbitals. N 1s photoelectron spectra of N2 are measured in the extended photon energy region up to ∼ 1 keV at unprecedented resolution. The measured ratio between the 1σg and 1σu photoionization cross-sections oscillates as a function of electron momentum due to interference effects analogue to YDSE. We found a shift of the interference pattern with respect to a prediction by a simple model for coherent two-center emission, the Cohen-Fano formula, and attributed it to photoelectron scattering by the neighboring atom. We demonstrate that the shift can be used to determine the scattering phase of the photoelectron.
AB - Core-level photoemission from N2 can be considered as an analogue of Young's double-slit experiment (YDSE) in which the double-slit is replaced by a pair of N 1s orbitals. N 1s photoelectron spectra of N2 are measured in the extended photon energy region up to ∼ 1 keV at unprecedented resolution. The measured ratio between the 1σg and 1σu photoionization cross-sections oscillates as a function of electron momentum due to interference effects analogue to YDSE. We found a shift of the interference pattern with respect to a prediction by a simple model for coherent two-center emission, the Cohen-Fano formula, and attributed it to photoelectron scattering by the neighboring atom. We demonstrate that the shift can be used to determine the scattering phase of the photoelectron.
KW - Core-level photoemission
KW - Double-slit experiment
KW - Interference
KW - Nitrogen molecule
KW - X-ray photoelectron spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=34247100131&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247100131&partnerID=8YFLogxK
U2 - 10.1016/j.elspec.2006.11.014
DO - 10.1016/j.elspec.2006.11.014
M3 - Article
AN - SCOPUS:34247100131
VL - 156-158
SP - 73
EP - 77
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
ER -